Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 250 insertions, 0 deletions

diff --git a/third_party/libwebrtc/common_audio/audio_util_unittest.cc b/third_party/libwebrtc/common_audio/audio_util_unittest.cc
new file mode 100644
index 0000000000..a215a123b1
--- /dev/null
+++ b/third_party/libwebrtc/common_audio/audio_util_unittest.cc
@@ -0,0 +1,250 @@
+/*
+ *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "common_audio/include/audio_util.h"
+
+#include "rtc_base/arraysize.h"
+#include "test/gmock.h"
+#include "test/gtest.h"
+
+namespace webrtc {
+namespace {
+
+using ::testing::ElementsAreArray;
+
+void ExpectArraysEq(const int16_t* ref, const int16_t* test, size_t length) {
+  for (size_t i = 0; i < length; ++i) {
+    EXPECT_EQ(ref[i], test[i]);
+  }
+}
+
+void ExpectArraysEq(const float* ref, const float* test, size_t length) {
+  for (size_t i = 0; i < length; ++i) {
+    EXPECT_NEAR(ref[i], test[i], 0.01f);
+  }
+}
+
+TEST(AudioUtilTest, S16ToFloat) {
+  static constexpr int16_t kInput[] = {0, 1, -1, 16384, -16384, 32767, -32768};
+  static constexpr float kReference[] = {
+      0.f, 1.f / 32767.f, -1.f / 32768.f, 16384.f / 32767.f, -0.5f, 1.f, -1.f};
+  static constexpr size_t kSize = arraysize(kInput);
+  static_assert(arraysize(kReference) == kSize, "");
+  float output[kSize];
+  S16ToFloat(kInput, kSize, output);
+  ExpectArraysEq(kReference, output, kSize);
+}
+
+TEST(AudioUtilTest, FloatS16ToS16) {
+  static constexpr float kInput[] = {0.f,   0.4f,    0.5f,    -0.4f,
+                                     -0.5f, 32768.f, -32769.f};
+  static constexpr int16_t kReference[] = {0, 0, 1, 0, -1, 32767, -32768};
+  static constexpr size_t kSize = arraysize(kInput);
+  static_assert(arraysize(kReference) == kSize, "");
+  int16_t output[kSize];
+  FloatS16ToS16(kInput, kSize, output);
+  ExpectArraysEq(kReference, output, kSize);
+}
+
+TEST(AudioUtilTest, FloatToFloatS16) {
+  static constexpr float kInput[] = {0.f,
+                                     0.4f / 32768.f,
+                                     0.6f / 32768.f,
+                                     -0.4f / 32768.f,
+                                     -0.6f / 32768.f,
+                                     1.f,
+                                     -1.f,
+                                     1.f,
+                                     -1.f};
+  static constexpr float kReference[] = {
+      0.f, 0.4f, 0.6f, -0.4f, -0.6f, 32768.f, -32768.f, 32768.f, -32768.f};
+  static constexpr size_t kSize = arraysize(kInput);
+  static_assert(arraysize(kReference) == kSize, "");
+  float output[kSize];
+  FloatToFloatS16(kInput, kSize, output);
+  ExpectArraysEq(kReference, output, kSize);
+}
+
+TEST(AudioUtilTest, FloatS16ToFloat) {
+  static constexpr float kInput[] = {0.f,     0.4f,     0.6f,    -0.4f,   -0.6f,
+                                     32767.f, -32768.f, 32767.f, -32768.f};
+  static constexpr float kReference[] = {0.f,
+                                         0.4f / 32768.f,
+                                         0.6f / 32768.f,
+                                         -0.4f / 32768.f,
+                                         -0.6f / 32768.f,
+                                         1.f,
+                                         -1.f,
+                                         1.f,
+                                         -1.f};
+  static constexpr size_t kSize = arraysize(kInput);
+  static_assert(arraysize(kReference) == kSize, "");
+  float output[kSize];
+  FloatS16ToFloat(kInput, kSize, output);
+  ExpectArraysEq(kReference, output, kSize);
+}
+
+TEST(AudioUtilTest, DbfsToFloatS16) {
+  static constexpr float kInput[] = {-90.f, -70.f, -30.f, -20.f, -10.f,
+                                     -5.f,  -1.f,  0.f,   1.f};
+  static constexpr float kReference[] = {
+      1.036215186f, 10.36215115f, 1036.215088f, 3276.800049f, 10362.15137f,
+      18426.80078f, 29204.51172f, 32768.f,      36766.30078f};
+  static constexpr size_t kSize = arraysize(kInput);
+  static_assert(arraysize(kReference) == kSize, "");
+  float output[kSize];
+  for (size_t i = 0; i < kSize; ++i) {
+    output[i] = DbfsToFloatS16(kInput[i]);
+  }
+  ExpectArraysEq(kReference, output, kSize);
+}
+
+TEST(AudioUtilTest, FloatS16ToDbfs) {
+  static constexpr float kInput[] = {1.036215143f, 10.36215143f,  1036.215143f,
+                                     3276.8f,      10362.151436f, 18426.800543f,
+                                     29204.51074f, 32768.0f,      36766.30071f};
+
+  static constexpr float kReference[] = {
+      -90.f, -70.f, -30.f, -20.f, -10.f, -5.f, -1.f, 0.f, 0.9999923706f};
+  static constexpr size_t kSize = arraysize(kInput);
+  static_assert(arraysize(kReference) == kSize, "");
+
+  float output[kSize];
+  for (size_t i = 0; i < kSize; ++i) {
+    output[i] = FloatS16ToDbfs(kInput[i]);
+  }
+  ExpectArraysEq(kReference, output, kSize);
+}
+
+TEST(AudioUtilTest, InterleavingStereo) {
+  const int16_t kInterleaved[] = {2, 3, 4, 9, 8, 27, 16, 81};
+  const size_t kSamplesPerChannel = 4;
+  const int kNumChannels = 2;
+  const size_t kLength = kSamplesPerChannel * kNumChannels;
+  int16_t left[kSamplesPerChannel], right[kSamplesPerChannel];
+  int16_t* deinterleaved[] = {left, right};
+  Deinterleave(kInterleaved, kSamplesPerChannel, kNumChannels, deinterleaved);
+  const int16_t kRefLeft[] = {2, 4, 8, 16};
+  const int16_t kRefRight[] = {3, 9, 27, 81};
+  ExpectArraysEq(kRefLeft, left, kSamplesPerChannel);
+  ExpectArraysEq(kRefRight, right, kSamplesPerChannel);
+
+  int16_t interleaved[kLength];
+  Interleave(deinterleaved, kSamplesPerChannel, kNumChannels, interleaved);
+  ExpectArraysEq(kInterleaved, interleaved, kLength);
+}
+
+TEST(AudioUtilTest, InterleavingMonoIsIdentical) {
+  const int16_t kInterleaved[] = {1, 2, 3, 4, 5};
+  const size_t kSamplesPerChannel = 5;
+  const int kNumChannels = 1;
+  int16_t mono[kSamplesPerChannel];
+  int16_t* deinterleaved[] = {mono};
+  Deinterleave(kInterleaved, kSamplesPerChannel, kNumChannels, deinterleaved);
+  ExpectArraysEq(kInterleaved, mono, kSamplesPerChannel);
+
+  int16_t interleaved[kSamplesPerChannel];
+  Interleave(deinterleaved, kSamplesPerChannel, kNumChannels, interleaved);
+  ExpectArraysEq(mono, interleaved, kSamplesPerChannel);
+}
+
+TEST(AudioUtilTest, DownmixInterleavedToMono) {
+  {
+    const size_t kNumFrames = 4;
+    const int kNumChannels = 1;
+    const int16_t interleaved[kNumChannels * kNumFrames] = {1, 2, -1, -3};
+    int16_t deinterleaved[kNumFrames];
+
+    DownmixInterleavedToMono(interleaved, kNumFrames, kNumChannels,
+                             deinterleaved);
+
+    EXPECT_THAT(deinterleaved, ElementsAreArray(interleaved));
+  }
+  {
+    const size_t kNumFrames = 2;
+    const int kNumChannels = 2;
+    const int16_t interleaved[kNumChannels * kNumFrames] = {10, 20, -10, -30};
+    int16_t deinterleaved[kNumFrames];
+
+    DownmixInterleavedToMono(interleaved, kNumFrames, kNumChannels,
+                             deinterleaved);
+    const int16_t expected[kNumFrames] = {15, -20};
+
+    EXPECT_THAT(deinterleaved, ElementsAreArray(expected));
+  }
+  {
+    const size_t kNumFrames = 3;
+    const int kNumChannels = 3;
+    const int16_t interleaved[kNumChannels * kNumFrames] = {
+        30000, 30000, 24001, -5, -10, -20, -30000, -30999, -30000};
+    int16_t deinterleaved[kNumFrames];
+
+    DownmixInterleavedToMono(interleaved, kNumFrames, kNumChannels,
+                             deinterleaved);
+    const int16_t expected[kNumFrames] = {28000, -11, -30333};
+
+    EXPECT_THAT(deinterleaved, ElementsAreArray(expected));
+  }
+}
+
+TEST(AudioUtilTest, DownmixToMonoTest) {
+  {
+    const size_t kNumFrames = 4;
+    const int kNumChannels = 1;
+    const float input_data[kNumChannels][kNumFrames] = {{1.f, 2.f, -1.f, -3.f}};
+    const float* input[kNumChannels];
+    for (int i = 0; i < kNumChannels; ++i) {
+      input[i] = input_data[i];
+    }
+
+    float downmixed[kNumFrames];
+
+    DownmixToMono<float, float>(input, kNumFrames, kNumChannels, downmixed);
+
+    EXPECT_THAT(downmixed, ElementsAreArray(input_data[0]));
+  }
+  {
+    const size_t kNumFrames = 3;
+    const int kNumChannels = 2;
+    const float input_data[kNumChannels][kNumFrames] = {{1.f, 2.f, -1.f},
+                                                        {3.f, 0.f, 1.f}};
+    const float* input[kNumChannels];
+    for (int i = 0; i < kNumChannels; ++i) {
+      input[i] = input_data[i];
+    }
+
+    float downmixed[kNumFrames];
+    const float expected[kNumFrames] = {2.f, 1.f, 0.f};
+
+    DownmixToMono<float, float>(input, kNumFrames, kNumChannels, downmixed);
+
+    EXPECT_THAT(downmixed, ElementsAreArray(expected));
+  }
+  {
+    const size_t kNumFrames = 3;
+    const int kNumChannels = 3;
+    const int16_t input_data[kNumChannels][kNumFrames] = {
+        {30000, -5, -30000}, {30000, -10, -30999}, {24001, -20, -30000}};
+    const int16_t* input[kNumChannels];
+    for (int i = 0; i < kNumChannels; ++i) {
+      input[i] = input_data[i];
+    }
+
+    int16_t downmixed[kNumFrames];
+    const int16_t expected[kNumFrames] = {28000, -11, -30333};
+
+    DownmixToMono<int16_t, int32_t>(input, kNumFrames, kNumChannels, downmixed);
+
+    EXPECT_THAT(downmixed, ElementsAreArray(expected));
+  }
+}
+
+}  // namespace
+}  // namespace webrtc